package com.geo.fight;

import java.util.Random;

public class Test {
	public static void main(String[] args){
		while(true){
			Random rand = new Random();
			double val = 10*rand.nextDouble()+300;
			if(rand.nextBoolean())
				System.out.println(val);
			else
				System.out.println(-1*val);
		}
	}
}
